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The Metana Blog
Guides, tutorials & career tips.
Expert-written guides on Full-Stack Development, Web3, AI, Data, and Cybersecurity — built for aspiring engineers and tech professionals ready to level up.
BlockchainWhat is Event Handling in Web3.js? [Explained]
The world of blockchain technology develops on real-time communication and transparency. Smart contracts, the self-executing programs on blockchains, play a significant role in this dynamic environment. They can emit eve
Metana EditorialApril 1, 2024Read
BlockchainHow to Send Ethereum Transactions Using Web3.js
TL;DR: Web3.js is a powerful library that unlocks the potential of interacting with the Ethereum blockchain and other Web3-compliant platforms. One of its core functionalities is sending transactions, enabling users to t
Metana EditorialMarch 29, 2024Read
BlockchainWhat are Web3.js Providers [Explained]
Web3.js, a popular JavaScript library, empowers developers to build decentralized applications (dApps) that interact with blockchains. But how do these dApps actually connect to the underlying network and perform actions
Metana EditorialMarch 28, 2024Read
BlockchainHow to Connect to Ethereum with Web3.js: Understanding Web3.js Library
Web3.js open up the huge power of Ethereum blockchain for developers. This JavaScript library let’s you talk with Ethereum, allowing you to interact with Ethereum’s decentralized network from your web applications. With
Metana EditorialMarch 27, 2024Read
Blockchain[SOLVED] “evm: execution reverted” Error
TL;DR Have you ever faced a sudden stop sign while navigating the Ethereum universe? Meet the execution reverted errors, the EVM’s way of keeping things in check. Imagine the Ethereum Virtual Machine (EVM) as a smart, po
Metana EditorialJanuary 12, 2024Read
BlockchainWhat are Ethereum Gas Fees: A Comprehensive Guide
TL;DR: Ethereum gas fees are payments for the computational work needed to process transactions on the Ethereum network. They vary based on gas price (cost per unit, in Gwei) and gas limit (maximum units allocated per tr
Metana EditorialJanuary 1, 2024Read
BlockchainUnderstanding Solidity Variables: Types and Uses
TL;DR:In Solidity, variables are used to store and manipulate data in smart contracts. They are classified into value types (e.g., uint, bool, address, bytes) and reference types (e.g., string, arrays, structs, mappings)
Ali KansoOctober 20, 2023Read
BlockchainHow to Make a Flash Loan Using Aave
TL;DR: Flash loans are a super cool new idea in the world of decentralized finance (DeFi). They let users borrow as much money as they want without needing to put up anything as collateral. The only catch is that the loa
Metana EditorialSeptember 28, 2023Read
BlockchainZero Knowledge Proofs(ZK Proof): Unlocking the Secrets
Imagine a world where you can prove the truth of a statement without revealing any details about the statement itself. It sounds paradoxical, doesn’t it? How can one demonstrate knowledge of a secret without disclosing t
Ali KansoSeptember 27, 2023Read
BlockchainHow to Create a DAO : A Comprehensive Guide
In the fast-paced world of digital tech, Decentralized Autonomous Organizations (DAOs) are changing how we think about organizations. A DAO is a group that runs on blockchain. It works based on rules set up in smart cont
Metana EditorialSeptember 22, 2023Read
BlockchainWhat is Layer 1 Blockchain and Why Does It Matter?
Blockchain technology is revolutionizing the way we think about data and trust. But what exactly is Layer 1 in blockchain, and why is it so important? In simple terms, Layer 1 blockchain is the foundation of all blockcha
Metana EditorialSeptember 19, 2023Read
BlockchainUltimate Guide for the Best Programming Language for Blockchain Development
Are you looking to dive into blockchain development but not sure which programming language to start with? Look no further! In this article, we’ll explore the best programming language for blockchain development that wil
Metana EditorialAugust 17, 2023Read
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